stars appear to be twinkling but planets do not twinkle .why?explain why the colour of the clear sky during day appear blue and during sunset appears red
Answers
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Here is the answer :-
star appears to be Twinkle but planets do not, it is because starts have a fuel in the centre of the body that planet do not have .
Why does sky appear to be blue and red during sunset ?
Answer :-
As we know , that contains 7 colours ,that is, VIBGYOR .
Now, the colour of our Sky depends on the the wavelength of these colour. Here , violet colour has the least wavelength but red colour has the largest wavelength .
during sunrise the light has to travel in fact white light have to travel a short distance, it refers to the colour with short wavelength . so the sky appears blue . back during sunset the lesson light have to travel a large distance and as we know the red light has the largest wavelength, the sky appears red during sunset
Hope it will be helpful....
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Answer:
stars appear to twinkle due to change in refractive index of air with temperature
during day the sky appears blue because blue colour has the shortest wavelength so it is scattered by the air particles the most n the sky appears red during sunset n sunrise because during sunrise n sunset red colour having the longest wavelength scatters the least n travels a longer distance without deviating much hence the sky appears red.